Motor protector



A. ARUTUNOFF MOTOR PROTECTOR Oct. 21, 19300 Filed April 15, 1927 attozmq Patented a, 21, 1930 I v UNITED? s-rATEs-rATENrQoFF I Annexe Alternators, on'nos enemas, CALIFORNIA, ASSIGNOE 'ro arm 1mm COMPANY, or BARTLESVILLE, oxnanomah CORPORATION or DELAWARE i Moron rRorEoron Application filed Aprii 15 My invention consists in newand useful mprovements in submergible electric motors fordrivin'gumps or other machinery and has forjits o ject to tecting said motor wh1le1n operatlon. v v t Another object of-my' invention is to pro- .videprotecting means for'the motor, con- 1 tained in the motor housing or embodied in the motor structure.

' With the above which will appear as the descr ption proceeds, my invention consists in the herein set forth, illustrated in the accompan mg drawingand more particularly set out n v the appended claims.

The figure shown in the drawing is a partly in sectionshowing the position of the parts ofvmynnproved-protector; In the drawing, 1 represents the housing or casing of an electric submergible motor of any'conventional type. 2-is a. partition havmg an upwardly extending sleeve 3 surround 1 ing the motor shaft 4, forming a reservoir 5 1n the. upper .portionof said casing. In the lower art of the reservoir 5 is located a rotary pump structure 6 having an inlet port Z and a discharge valve 8 extending through theca'sing 1 and opening into the well;

The rotating member 9 of the pump, 6 extends upwardly in a sleeve member 10 sur: rounding the sleeve 3, and o eratively en- ,gagesa coupling 11 on the ,en' of'the motorshaft 4, which coupling is provided for trans- -mitting power to the adjacent shaft 12.

' The operation of my device is as follows:

which may occur along thesh'aft12 past the stu'fiing box 13 or any other protecting means 40 which may be provided will drop down into invention may be cleariyiunderstood without further description, it being borne in mind fl that numerous changes-may be .made'inthe g details of construction without departing "from the spirit of the invention as set forth to "in the appended claims provide means for pro-. from surrounding hqmd I 1n a sleeve portion and other objects in view,

novel features -opening into the well. I

- 2'.- The combination with a submergible e5 the well.

1927. Serial no; 13:1,991.

What I claim terspatent is v l. The combination with a ,submerg'ible electric motor, a casingsurrounding the motor having a partition extending upwardly u sisting of a rotating member surrounding the motor shaft, an inlet port in the "pump, so within the reservoir and arranged below the upper end ofrsaid sleeve, and a discharge valve extending throug said casing and electric motor, a casing surrounding said motor, a reservoir-in the uppe iportion'of said casing, a rotary protecting pump in said reservoir around the motor shaft, the rotary member of said shaft, an inlet port in said pump within the reservoir and arranged belowthe upper end of said reservoir and an outlet valve extending through said casing and opening into 3. The combination with a Y submergible electric motor, a casing surrounding said motor, bafile means in the upper portion of said casing forming a reservoir tecting pump in said reservoir surroun' said bafile means and operated by the m shaft, aninlet port in said pump within the" , reservoir and arranged below the upper end of said bafiie means, J tending through-said casing, said pump being so adapted to ex 'el'an leakage into said reseren the motor. is running anyleakage.

anda discharge valve exvoir, directly into t e well.

4. The. combination with a submergible electric motor, a casing surrounding the motor having an. elongated sleeve extendlng upwardly therefrom and surrounding the motor shaft, a second casing above said first named casing-and, together with said sleeve, form- --ing an annular reservoir, a

rotary'protectin pump within said reservoir su'rroundin sai sleeve and operated" by the motor 'sh'a an inlet port'in saidpump within the reservoir and arranged below the upper-end of said sleeve, and a discharge .valve' extendin through? said second casing, whereby -sai r and desire to-secure by Letl I.

forming. a reservoir, a a a rotary protect ng pump 1n said reservoir consaid pump operatively engaging 7Q- a rotary r0 saidweservoir,

pump is adapted to expel any lege inta directly-into the well. The combination as claimed in claim 7 wherein said s 1e'eve, 1s integral with said motor casin In testlmony iwhreof I a my signature.

is UNOFF. 

